College - Author 1

College of Architecture and Environmental Design

Department - Author 1

Construction Management Department

Degree Name - Author 1

BS in Construction Management



Primary Advisor/Subject Matter Expert (SME)

Maryam Kouhirostami, College of Architecture and Environmental Design, Construction Management Department


This senior project focused on the cost of the materials used for the shell and structure of the Gateway Decathlon modular residential unit. Collectively, the group on the Gateway Decathlon project decided to design and build the structure using mass timber. A material takeoff of the building was performed, allowing for an accurate measurement of structural materials. After material selection, a final cost estimate was by multiplying the selected materials unit price by the total quantity of the material. The material cost estimate calculations were performed on the current Revit Model allowing for a full-scale analysis of the offsite building. The estimate does not account for labor, strictly materials. The total cost of the structural components of the building was $246,028.13. A large portion of the cost was a result of the use of Cross Laminated Timber (CLT) however prefabrication and efficient building methods could reduce the cost when built. The timber market can also fluctuate which could cause a variety of cost outcomes.